Voltage-mode biquadratic filters with one input and five outputs using two DDCCs

Authors:

Chiu, Wei-YuanHorng, Jiun-Wei

Keywords:

Current conveyorActive filterAnalog signal processingUniversal biquad

Issue Date:

Apr-2011

Publisher:

NISCAIR-CSIR, India

Abstract:

In this paper, two new voltage-mode
universal biquadratic filters each with one
input terminal and five output terminals are presented. Each of the proposed circuits can realize voltage-mode highpass, bandpass, lowpass, notch and
allpass filter transfer functions, simultaneously, by using two plus-type
differential difference current conveyors (DDCCs), two grounded capacitors and
three resistors. Moreover, the proposed circuits have the following
attractive advantages: (i)
realization of all the standard filter functions from the same circuit
configuration, (ii) employment of grounded capacitors that is ideal for integration and (iii) low active and passive
sensitivities.

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